Neuron is the type of cell in the central nervous system
plays an important role in the uptake and processing of neurotransmitters from
synaptic clefts.
To add, a neuron is an electrically excitable cell
that processes and transmits information through electrical and chemical signals.
Ptosis is the noticeable upper eyelid droop. It is not a disease, and therefore does not cause anything symptomatic, and is not infectious or life threatening. It is mostly associated with aging, or excess skin. The most uncomfortable thing is the possible occlusion of the eyes field of vision (meaning it may cover your eye a little. It is easily correctable with surgery.
Waterborne<span> diseases are conditions caused by </span>pathogenic<span> micro-organisms that are </span>transmitted<span> in water, the d</span>isease can<span> be spread while bathing, washing or drinking water, or by eating food exposed </span>to <span>infected water</span>
The answer Is B. Hope this helps
